example: add exemple for scene switching

examples/init.lua

@@ -1,3 +1,4 @@
 return {
   Test = require "examples.test_scene",
+  Test2 = require "examples.test_scene2",
 }

examples/test_scene/init.lua

@@ -34,6 +34,10 @@ function TestScene:update(dt)
   self.i = self.i + dt
 end
 
+function TestScene:mousepressed(x, y)
+  examples.Test2()
+end
+
 function TestScene:draw()
   love.graphics.setColor(0, 0, .4, 1)
   love.graphics.rectangle("fill", 0, 0, 424, 240)

examples/test_scene2/init.lua

@@ -0,0 +1,50 @@
+-- scenes/test :: a basic test scene
+
+--[[
+  Copyright © 2019 Kazhnuz
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy of
+  this software and associated documentation files (the "Software"), to deal in
+  the Software without restriction, including without limitation the rights to
+  use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+  the Software, and to permit persons to whom the Software is furnished to do so,
+  subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in all
+  copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+  FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+  IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+]]
+
+local Scene = require "gamecore.modules.scenes"
+local TestScene = Scene:extend()
+
+function TestScene:new()
+  TestScene.super.new(self)
+
+  self.i = 0
+end
+
+function TestScene:update(dt)
+  self.i = self.i + dt
+end
+
+function TestScene:mousepressed(x, y)
+  examples.Test()
+end
+
+
+function TestScene:draw()
+  love.graphics.setColor(.4, 0, 0, 1)
+  love.graphics.rectangle("fill", 0, 0, 424, 240)
+
+  love.graphics.setColor(1, 1, 1, 1)
+  love.graphics.print(math.floor(self.i) .. " ; " .. self.mouse.x .. ":" .. self.mouse.y, 16, 16)
+end
+
+return TestScene